Find The Volume Of The Parallelepiped With One Vertex At The Origin And Adjacent Vertices At

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Find the volume of the parallelepiped with one vertex at the origin and adjacent vertices at (1, 0, -3), (1, 2, 4), and (5, 1, 0).

Answer: Compute the determinant of the matrix whose column entries are coordinates of the adjacent vertices of the given parallelepiped. This determinant represents its volume and is equal to 23.

Explanation

Finding the volume of the parallelopiped with one vertex in the origin and other adjacent vertices is equivalent to finding the determinant of the matrix whose column entries are coordinates of the corresponding adjacent vertices. Let’s denote the matrix obtained in this way by A. We will find its determinant using cofactor expansion across the first column (because it has one zero-entry, making our job easier).

find the volume of the parallelepiped with one vertex at the origin and adjacent vertices at

Therefore, the volume of the given parallelopiped is equal to 23.

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